Maybe it's all your eggs in one basket thinking but personally I'd go for a Pewter (aka Pewter Pastel) male. I saw that The Snakekeeper has a male on their site for 10K. Now I'm no genetics expert but according Markus Jayne's site this is a morph that can do some serious stuff. Here's the link but it sure impressed me with what it can produce when crossed with normal females or other morphs.

http://www.ballpython.ca/collection/pewter/pewter.html

http://www.ballpython.com/page.php?topic=available

Someone please chime in (hopefully Kara LOL) but isn't one of the Bees like that, a tripe threat type morph that can produce different visible morphs all from the same clutch?